/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1995, by Sun Microsystems, Inc.
 * All rights reserved.
 */

/*
 * pecho_wc.c
 *
 * XCurses Library
 *
 * Copyright 1990, 1995 by Mortice Kern Systems Inc.  All rights reserved.
 *
 */

#if M_RCSID
#ifndef lint
static char rcsID[] = "$Header: /rd/src/libc/xcurses/rcs/pecho_wc.c 1.1 1995/06/20 13:31:51 ant Exp $";
#endif
#endif

#include <private.h>

int
pecho_wchar(WINDOW *pad, const cchar_t *cc)
{
	int code, dy, dx;

#ifdef M_CURSES_TRACE
	__m_trace("pecho_wchar(%p, %p)", pad, cc);
#endif

	/* Compute height and width of inclusive region. */
	dy = pad->_smaxy - pad->_sminy;
	dx = pad->_smaxx - pad->_sminx;

	/* Is the logical cursor within the previously displayed region? */
	if (pad->_cury < pad->_refy || pad->_curx < pad->_refx
	|| pad->_refy + dy < pad->_cury || pad->_refx + dx < pad->_curx)
		return __m_return_code("pecho_wchar", ERR);

	/* Add the character to the pad. */
	if ((code = wadd_wch(pad, cc)) == OK) {
		/* Redisplay previous region. */
		code = prefresh(
			pad, pad->_refy, pad->_refx,
			pad->_sminy, pad->_sminx, pad->_smaxy, pad->_smaxx
		);
	}

	return __m_return_code("pecho_wchar", code);
}
